A prime number embedded in the decimal expansion of . [Gardner]
The squares and cubes of this prime, in reverse
concatenation, are primes. [Silva]
The six-digit combination to Ellie's small office safe in the novel Contact by Carl Sagan.
314159 is a twin prime formed from three two-digit primes that are all members of twin prime pairs. [Silva]
Vasilios Gardiakos points out in his "Document Alpha" that 314159 is an emirp.
If A=3, B=1, C=4, D=1, E=5, F=9, ... , (using the digits of
), then 'THREE ONE FOUR ONE FIVE NINE' is prime. [Homewood]
(There are 4 curios for this number that have not yet been approved by an editor.)